Fuel-oil burner.



J. H. KRAMER. FUEL OIL BURNER. APPLICATION mzo MAR. 21. 1915.

1,160,515. Patented Nov. 16, 1915.

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JAMES H. KRAMER, OF BALTIMORE, MARYLAND, ASSIGIIOR OF ONE-HALF 'IOALFRED W. WITT'IERS, 0F BALTIMORE, MARYLAND.

FUEL-OIL BURNER.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed March 27, 1915. Serial No. 17,354.

To all whom it may concern Be it known that I, James H. KRAMER, acitizen of the United States, residing at Baltimore city, State ofMaryland, have invented certain new and useful Improvements in Fuel-OilBurners, of which the following is a specification.

This invention relates to fuel oil burners of the injector type, and itsobject is to provide a simple and highly etficient burner of this kind,characterized by a mixing chamher into which. are delivered, by aninjector action, oil and steam or air under pressure, and from whichchamber the mixture is discharged into the combustion chamber of thefurnace.

The object stated is attained by means of a novel combination andarrangement of parts to be hereinafter described and claimed, referencebeing had to the accompanying drawing, in which Figure 1 is an elevationof the apparatus, partly in sectiomand Fig. 2 is a plan view thereof.

Referring specifically to the drawing, 5 denotes an injector nozzlewhich is connected at its inlet end to a valve casing 6 containing avalve 7, and having a connection 8 with a source of fluid underpressure, such as steam or air, and in which connection is interposed avalve 9. The discharge end of the nozzle is connected to one end of a.T-coupling 10, to

the opposite end of which latter is connected a delivery pipe 11 leadingto a mixing chamber 12 of large diameter and'having contracted ends. Tothe side of the coupling 10 is connected a pipe 13 leading from asuitable source of oil supply and containing a valve 1%. To the outletend of the mixing chamber and in alinement with the delivery pipe isconnected a nozzle 15 having itsdischarge end located to discharge intothe combustion chamber of the furnace.

In operation, when the fluid under pressure and oil is turned on byopening the valves 9 and 14, the steam, air, or other fluid underpressure is discharged from the nozzle 5 through the coupling 10 and thepipe 11 into the chamber 12 The oil discharges into the coupling 10 infrontof the nozzle 5 and is blown and carried along with the steam orair, and both are injected into the chamber with a high velocity andunder pressure, and the mixture is discharged into the furnacecombustion chamber through the nozzle 15, and upon being ignited itburns fiercely and with intense heat. The oil will be fed into thecoupling 10 under a pressure a little below the pressure of the air orsteam, a difference of ten pounds in the respective pressures givinggood results. The steam or air and the oil are thoroughly mixed by theimpact and the atomizing action produced. by r the discharge of steam orairfrom the nozzle 5 in direct contact with the oil, and a further andcomplete mixture takes place in the chamber 12.

The injector pipe 5 is connected to one end of the casing 6, and in theopposite end of the latter is a clean-out opening 16. The steam or airsupply-connection 8 is made at the side of the casing. The valve 7 is soconstructed that it closes the opening 16 when the apparatus is inoperation, and it can be turned to uncover said opening, and as thelatter is in line with the injector nozzle, the same can be easilycleaned out.

The burner can be operated with wet or dry steam, or compressed air. Aperfect mixture and absolute combustion is assured. The burner is alsonon-choking, and is adapted for either heavy or light oils. In view ofthe simplicity of the structure, the burner can be easily and cheaplymanufactured. and it is alsoeconom cal in fuel consumption. The burnerproduces an intense I discharge directly front of the end of said outletnozzle being of small diameter to fit l0 nozzle, a delivery pipeconnected to saidcoupllng H1 allnement With said nozzle, a mixsaidcontracted ends,

In testimony Where'ofl afliX my signature ing chamber of large diameterand having in presenceof two i v'itne sses. I

contracted ends onnected to the discharge a 7 end of said delivery pipe,and an outlet noz-' V t 'zle connected to said mixing chamber at the endopposite to saiddehvery plpe and in alinement therewith, said deliverypipeand JAMES H. KRAMER.

lVitnesses: V a i '7 7 EJ; WAL ON BREWINGTON,

HOWARD D. ADAMS.

7 Copies of this patent may be obtainedfo rvfi ve cents eaeh, byaddressing the Commissioner ofalatents,

7 Washington. D. C.

